<?

class SimpleImage { 
var $image; 
var $image_type; 
function load($filename) { 
$image_info = getimagesize($filename); 
$this->image_type = $image_info[2]; 
if( $this->image_type == IMAGETYPE_JPEG ) { 
$this->image = imagecreatefromjpeg($filename); 
} elseif( $this->image_type == IMAGETYPE_GIF ) { 
$this->image = imagecreatefromgif($filename); 
} elseif( $this->image_type == IMAGETYPE_PNG ) { 
$this->image = imagecreatefrompng($filename); 
} 
} 
function save($filename, $image_type=IMAGETYPE_JPEG, $compression=100, $permissions=null) { 
if( $image_type == IMAGETYPE_JPEG ) { 
imagejpeg($this->image,$filename,$compression); 
} elseif( $image_type == IMAGETYPE_GIF ) { 
imagegif($this->image,$filename); 
} elseif( $image_type == IMAGETYPE_PNG ) { 
imagepng($this->image,$filename); 
} 
if( $permissions != null) { 
chmod($filename,$permissions); 
} 
} 
function output($image_type=IMAGETYPE_JPEG) { 
if( $image_type == IMAGETYPE_JPEG ) { 
imagejpeg($this->image); 
} elseif( $image_type == IMAGETYPE_GIF ) { 
imagegif($this->image); 
} elseif( $image_type == IMAGETYPE_PNG ) { 
imagepng($this->image); 
} 
} 
function getWidth() { 
return imagesx($this->image); 
} 
function getHeight() { 
return imagesy($this->image); 
} 
function resizeToHeight($height) { 
$ratio = $height / $this->getHeight(); 
$width = $this->getWidth() * $ratio; 
$this->resize($width,$height); 
} 
function resizeToWidth($width) { 
$ratio = $width / $this->getWidth(); 
$height = $this->getheight() * $ratio; 
$this->resize($width,$height); 
} 
function scale($scale) { 
$width = $this->getWidth() * $scale/100; 
$height = $this->getheight() * $scale/100; 
$this->resize($width,$height); 
} 
function resize($width,$height) { 
$new_image = imagecreatetruecolor($width, $height); 
imagecopyresampled($new_image, $this->image, 0, 0, 0, 0, $width, $height, $this->getWidth(), $this->getHeight()); 
$this->image = $new_image; 
} 
}
?>